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Wooded islands and tidal water along the Maine coast
County profile · Mid-coast Maine

Sagadahoc County

A compact county shaped by the lower Kennebec River, tidal islands, shipbuilding, historic communities, and a coastline opening toward the Gulf of Maine.

County overview

River, coast, and community

Sagadahoc County is one of Maine’s sixteen counties. It was formed on April 4, 1854, from part of Lincoln County and occupies a distinctive place in southern mid-coast Maine.

The county stretches around the lower Kennebec River and includes the City of Bath, the county seat, together with Arrowsic, Bowdoin, Bowdoinham, Georgetown, Phippsburg, Richmond, Topsham, West Bath, and Woolwich.

Perkins remains within the county as an unincorporated township. It consists of Swan Island and Little Swan Island in the Kennebec River near Richmond. The islands form part of the Steve Powell Wildlife Management Area.

The county’s geography connects inland farms and villages with tidal rivers, peninsulas, islands, and maritime communities. Bath’s relationship with the Kennebec and shipbuilding is especially prominent, while the surrounding towns reflect both river and coastal patterns of settlement.

Places in the county

Communities from river to sea

The county’s municipalities gather around the Kennebec corridor and the peninsulas and islands near its mouth.

Bath

The county seat and principal city, closely associated with the Kennebec River and maritime industry.

Arrowsic & Georgetown

Island communities between the Kennebec and coastal waters.

Bowdoin & Bowdoinham

Inland communities in the county’s northern and western area.

Phippsburg & West Bath

Peninsular towns whose landscapes combine coves, woods, salt marshes, and shoreline.

Richmond & Topsham

Kennebec River communities connecting the county with central and southern Maine.

Woolwich & Perkins

Woolwich spans river country east of Bath; Perkins encompasses Swan Island and Little Swan Island.

Sunrise over a broad river bordered by forest
Landscape

The lower Kennebec defines the county.

The river is both a geographic spine and a historical route. Tides reach far inland, and the channel broadens among islands before meeting the Atlantic. Communities developed around crossings, navigable water, working waterfronts, and access to nearby coastal resources.

Readers can place these features in a wider geographic context through the site’s map collection.

Open the Map Cabinet →
Historical outline

Four points in the county story

A concise chronology links county organization, municipal continuity, island administration, and the river landscape.

County formed

Sagadahoc County was created from part of Lincoln County on April 4.

Boundary adjusted

Ragged Island was transferred from Phippsburg to Harpswell in Cumberland County.

Perkins reorganized

Perkins became an unincorporated township while remaining part of the county.

Continuity

Original communities

The municipalities present when the county formed continue to define its civic geography.

Continue exploring

Place this county in context

Use connected county, government, map, and place entries to move from the overview to closer study.

Counties and government

Compare Sagadahoc with Maine’s other counties and explore the governmental framework around cities, towns, and townships.

Browse county entries
FAQ

About Sagadahoc County

Quick answers about the county’s formation, communities, geography, and reference routes.

When was Sagadahoc County established?

It was formed on April 4, 1854, from a portion of Lincoln County.

What is the county seat?

Bath is the county seat and the county’s only city.

Which communities are in the county?

The county includes Bath, Arrowsic, Bowdoin, Bowdoinham, Georgetown, Phippsburg, Richmond, Topsham, West Bath, Woolwich, and the unincorporated township of Perkins.

Where is Perkins?

Perkins consists of Swan Island and Little Swan Island in the Kennebec River near Richmond.

What physical feature most strongly shapes the county?

The lower Kennebec River is its central geographic feature, linking inland communities with tidal islands, peninsulas, and the coast.

Where can I find historical maps?

Use the Map Cabinet to explore historical map material, including county geography.

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